Orange County NC Website
as <br />signiGCant issue, such as an agricWhrtel operation. in-vevsel is [be most capital-ivimsive, but <br />typically ryoircs the lean space and is used where Imd is a[ a premium end odorwnhol is <br />importmt. Some W-vessel syetmsa have attempted to inwmomle not oNy eowoe-separated <br />m'gmics but also mixed solid w¢cte( caw waste). Static pile methods are¢wmpromise ivterme <br />ofboth capital aquipmmt and laM requiremmrs batwem the Grct two appcoeehes. Compos+sblc <br />materials ere placed iu a pile, wiN a biological based flmr for m odor wnbol and usuWlycovered <br />with a pemimmt roof systav to cegWate moisture avd temperature. A conaolled sir anemr is <br />blowy ttwugh thepiles mtil compost ie made <br />NExed waste pmae emg (aaitities M1ave gmerelly been msuwessfal either teclurically, mazkM-wise <br />orboth, although IwMUlogy is impmvm6 the product iu the new gmemdon of facidtles. TTme arc <br />ongoing concave abort and-market uses ofmixed waste compost Where these syncros <br />esefblly produce a pmdact its psee are typically limimd to mginnerivg applications such as <br />NMSII wvar or erasion wntmL but not agrlmlmrW ar hortleulnnW oPPlicetlons. <br />Nlhvugh there ma composting aucccee s[oriaa vationally, in recent yeas sevavl large-ecalq <br />cmnnllzed compostvg facilities have hem closed. These mcluda Agi-Pen'e windrow facility in <br />Dade County, Florida, ¢ publicly-owned facility in Pembroke Pmes, Florida, a Portlmd Oregon <br />hcility buW ov the Dmo in-vessel teclvalogy and mother one m Wright Couvty, Mimesom. <br />Those drat failed were primarily desi~ad orbWlt farmixed waste composting. mhos have failed <br />to be sited due m concems about potential odors, flnmdW ursenaimydue to lack of flow cvmml <br />combined with compefition tram cbe~er Imdfille, aM concems about anbome 1WerobiW diseases <br />raring from the composting opastiovs. Same facilities that have closed were built Car courts <br />sepazntM Orgmics. Thus there is some techvical,f racial and roarket risk ivvolved Nanmmdngm <br />site or buildafmiGty fm cmtr¢lized wmposting. Covecqucutly, the mixed wane approach fast <br />e ofthe composting melhodoingies examined) has not m W s pointbem seriously considered for <br />prongs Comty doe to the questionableprodvct goelity and gmaal lock ofsuccess elsmvhue in this <br />ountry. Other composting epprmches using source-sepazated waste were considered but other <br />waste reduction strategee wam Wtimataly seleciN far mclusiav in tba Ormga County Solid Waste <br />Mavagcmmt Plm. <br />1996 WESTON Study <br />Cmtralized composdng of We "wet" vs orgatde fi¢etion o£waste was evaluated es part of one oftlte <br />flues solid waaro management plm optioria wdally evaluated by K2STON, the crosulting fine <br />used to develop the semazioe from which the LandfE Ovmere Group seleet~ the solid waste plm <br />in 1996 (see "Systems Evaluation" excerpt Gom the Apri1199fi WGSTON report). A diffurot <br />sceratlo was chosen and mdors iby member governments ofthe Landfill Owners Group, with <br />input Gam the Citizens Solid Waste Advisory Committee. l'he mncrynW system eeleMed was less <br />costly and involved less potential ttthnicW risk, bothad a somewhat lower divemiov pomndW, then <br />the system thaz woWd have NCWdM cmtrWiart compostine. TM selected system combined We <br />frllowingmeasures: <br />• reel, cornningled recycling wlleGivnpmdam, <br />• materials recovery facility and <br />• strmgtheved education, ontreaeh end recycling incentive programs. <br />